基于Hamilton理论的可逆冷带轧机速度张力系统无张力计控制

发布时间：2018-05-04 14:43

本文选题：可逆冷带轧机 + 无张力计控制　；参考：《自动化学报》2015年01期

【摘要】：基于反馈耗散Hamilton理论研究了可逆冷带轧机速度张力系统的无张力计控制问题.首先,对系统速度张力外环(主轧机速度环和左、右卷取机张力控制环)进行预反馈控制,并采用反馈耗散Hamilton理论完成了速度张力外环控制器的设计.其次,为了实现系统的无张力计控制及对摄动参数的自适应估计,基于"扩张系统+反馈"方法完成了系统速度张力外环自适应状态观测器的设计.再次,为了实现可逆冷带轧机主轧机速度和左、右卷取机张力间的协调控制及对外扰不确定项的干扰抑制,基于backstepping方法完成了系统电流内环鲁棒控制器的设计.理论分析表明,所提出的控制方法能够保证闭环系统的鲁棒稳定性.最后,基于某1 422 mm可逆冷带轧机速度张力系统的实际数据进行仿真,并同串级PI控制方法相比较,结果验证了本文所提方法的有效性.
[Abstract]:Based on the feedback dissipative Hamilton theory, the tensionless control of speed tension system of reversible cold strip mill is studied. Firstly, the system speed tension outer loop (main mill speed loop and left and right coiler tension control loop) is pre-feedback controlled, and the speed tension outer loop controller is designed by using feedback dissipative Hamilton theory. Secondly, in order to realize the tensionless control of the system and the adaptive estimation of the perturbation parameters, the adaptive state observer of the outer loop of velocity tension is designed based on the "extended system feedback" method. Thirdly, in order to realize the coordinated control between the speed of the main mill and the tension of the left and right coiler and the disturbance suppression of the disturbance uncertainty, the robust controller of the internal loop of the system is designed based on the backstepping method. Theoretical analysis shows that the proposed control method can guarantee the robust stability of the closed-loop system. Finally, based on the actual data of the speed tension system of a 1422 mm reversible cold strip mill, the simulation results are compared with the cascade Pi control method. The results show that the proposed method is effective.
【作者单位】：燕山大学工业计算机控制工程河北省重点实验室;国家冷轧板带装备及工艺工程技术研究中心;
【基金】：国家自然科学基金(61074099) 河北省高等学校创新团队领军人才培育计划(LJRC013) 燕山大学博士基金(B705)资助~~
【分类号】：TG334.9

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